Messages in this thread | | | Date | Wed, 12 Feb 2014 19:15:17 +0100 | From | Peter Zijlstra <> | Subject | Re: Too many rescheduling interrupts (still!) |
| |
On Wed, Feb 12, 2014 at 06:46:39PM +0100, Frederic Weisbecker wrote: > Ok but if the target is idle, dynticks and not polling, we don't have the choice > but to send an IPI, right? I'm talking about this kind of case.
Yes; but Andy doesn't seem concerned with such hardware (!x86).
Anything x86 (except ancient stuff) is effectively polling and wakes up from the TIF_NEED_RESCHED write.
| |